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Finding the Fourth Proportional to 66,429.40, 99,700.80 and 27,014.80

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Solution

The fourth proportional to 66,429.40, 99,700.80 and 27,014.80 is: 40,545.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,429.40 : 99,700.80 = 27,014.80 : x
  2. Step 2: Convert to fraction form
    66,429.40/99,700.80 = 27,014.80/x
  3. Step 3: Cross multiply
    66,429.40x = 99,700.80 × 27,014.80
  4. Step 4: Simplify right side
    66,429.40x = 2,693,397,171.84
  5. Step 5: Solve for x
    x = 2,693,397,171.84/66,429.40
  6. Step 6: Final answer
    x = 40,545.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.